Sony SCD-CE595 Service Manual page 20

SCD-CE595
• IC Block Diagrams
– MAIN Board –
IC701 M51957BFP-600C
8 7 6 5
–
+
3 4
1 2
SCD-CE595
IC702 BR9040F-WF2
8 7 6
COMMAND
4096bit REGISTER
EEPROM ARRAY
WRITE
DISABLE
POWER
ADDRESS
R/W HIGH VOLTAGE
SUPPLY
DECODER
AMP GENERATOR
VOLTAGE
DETECTOR
COMMAND DECODE
ADDRESS DATA CONTROL CLOCK
BUFFER REGISTER GENERATION
1 2 3
• IC Pin Function Description
• MAIN BOARD IC705 HD6432238RN51TEV (SYSTEM CONTROLLER)
Pin No. Pin Name
1 SDATA DAC
2 SCLK DAC
3 SLATR DAC
5
4 to 11 CD0 to 7
12 CVCC
13 CA0
14 VSS
15 to 22 CA1 to 8
23 PB1
24 PB2
25 LOAD S0
26 LOAD S1
27 LOAD S2
28 TSENS
29 DSENS
30 TRAY IN
4
31 RS232CTX
32 RS232CRX
33 TRAY OUT
34 P10
35 DRV ON
36 SP ON
37 P13
38 XLDON
39 TRMP
40 TRMM
41 P17
42 AVSS
43 DIAO
44 P96
45 to 50 P47 to P42
51 MODEL
52 JIT
53 VREF
54 AVCC
55 MD0
56 MD1
57 OSC2
58 OSC1
59 XRST
60 XNMI
61 XSTBY
62 VCC
63 XTAL
64 VSS1
65 EXTAL
20 20
I/O Description
O Data output to the DAC (IC200)
O Clock output to the DAC (IC200)
O Latch (R-ch) output to the DAC (IC200)
I/0 Data Bus to the Digital Servo Processor (IC706)
— Power supply terminal (+3.3V)
O Address Bus to the Digital Servo Processor (IC706)
— Ground terminal
O Address Bus to the Digital Servo Processor (IC706)
— Not used (open)
— Not used (open)
I DISK cyacking select (SO)
I TRAY (S2:OPEN)
I TRAY (S1:TURN)
I T sens signal input
I DISK sens signal input
O TRAY in control output to the Motor Driver (IC712)
O PC serial signal
I PC serial signal
O TRAY out control output to the Motor Driver (IC712)
— Not used (open)
O Driver mute output to the Motor Driver (IC712)
O Spindle mute output to the Motor Driver (IC712)
— Not used (open)
O LD ON/OFF output to the Motor Driver (IC712)
O Table control (+Clockwise) output to the TMD (IC710)
O Table control (-Counterclock) output to the TMD (IC710)
— Not used (open)
— Ground terminal
I Test Mode input
— Ground terminal
— Ground terminal
I Model check (L:1Hi,Mi:5Es,H:5 Hi)
I Waltz jetter select
I Reference voltage
— Power supply terminal (+3.3V)
I Muving mode control 0
I Muving mode control 1
— Not used (open)
— Ground terminal
O System reset
I NMI input (fixed at "H")
I Standby input (fixed at "H")
— Power supply terminal (+3.3V)
— Not used (open)
— Ground terminal
I External clock input